3-hydroxy-2-phenyl-2,3-dihydro-5H-benzo[b][1,4]thiazepin-4-one

11-phenyldibenzo[b,f][1,4]thiazepine

2-ethoxycarbonyl-4H-benzo(b)(1,4)thiazine

2-(2,4-dinitro-benzylidenamino)-thiophenol